C/C++ call to detect cpu?

Nicolas Blais nb_root at videotron.ca
Sun Jan 22 15:51:11 PST 2006

On Saturday 21 January 2006 15:33, John Levine wrote:
> >Other than 'grep'ing dmesg, is there a way to know the current cpu such as
> > a struct with the machine's cpu and cpu feature (kinda like a time_t
> > struct)?
> $ sysctl hw.model
> hw.model: AMD Athlon(tm) 64 Processor 3000+
> If you want more details write a tiny assembler routine that does a
> CPUID instruction and decode the result.  Intel has a detailed application
> note about it at
> http://developer.intel.ru/design/xeon/applnots/241618.htm
> R's,
> John

Thanks, that was great help, I was able to get the Processor Name string using 
info from that pdf.  Using asm instead of sysctl will ensure a bit more 
Unfortunatly, getting the actual processor speed (in Mhz) is more complicated 
according to that pdf, would you have any suggestions?

FreeBSD 7.0-CURRENT #0: Sat Jan 21 11:33:22 EST 2006     
root at clk01a:/usr/obj/usr/src/sys/CLK01A 
PGP? (updated 16 Nov 05) : http://www.clkroot.net/security/nb_root.asc
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